Closure for collapsible tubes



July 12, 1932. P. SICAULT CLOSURE FOR COLLAPSIBLE TUBES Filed Aug. 6, 1929 Patented July 12, 1932 UNITED STATES PATENT PAUL SIOA'U'LT, on PARIS, FRANCE, ASSIGNOR T soorn'rn ANONYME ETABLISSE- MEN'IS TISSIER, on PARIS, FRANCE r I CLOSURE FOR COLLAPSIBLE TUBES AppIication filed August 6, 1928, Serial No. 383,830, and in France July 16, 1929.

apertured caps provided with swingable closing means are already known.

The object of the present invention is to provide a closure of this kind with combined sealing and locking means, operated by the mere action of screwing more or less the cap upon the threaded nozzle of the tube.

The accompanying drawing shows one example of putting the subject matter of the invention into practice.

Fig. 1 represents in section the cap according to the invention in its open position and slightly unscrewed.

Fig. 2 is a section showing the same in its sealed and locked position. I A

Fig. 3 is an elevation corresponding to Fig. 2.

Fig. 4 is a view similar to Fig. 1, wherein, however, the cap is screwed down while the yoke upon the cap is swung to one side, the nose of the tube extending up into the aperture of the cap.

Fig. 5 is a side view of the yoke alone and its capsule.

In the drawing, a is the collapsible tube, 1) the cap for closing the tube, 0 the hole made in the cap and adjusted to register with the discharge opening of the tube, d the yoked closure mounted upon the cap in suchwise as to be able to swing upon this latter and surmounted by a capsule j which registers with the hole 0 in the axis of the nozzle 6 in the sealed and locked position of the closure (Z; 9 is a tapering prolongation of the threaded nozzle 6; h represents the two pivots ofthe yoke cl on the cap I), i is a stopper lodged in the capsule f and ensuring the hermeticity of the distribution outlet.

If the members shown in Figure 1 should be altered in their relative positions to the position shown in Figure 4, that is, if the cap were screwed home on thread 6 without first shifting the yoke (Z and its capsule f to the closed position of Figures 2 and 3, it would be necessary to first unscrew the cap a certain extent, in order to permit shifting the yoke up to said closed position.

Afterwards the cap 6 must be a little unscrewed again so as to be able to replace the sealing body enclosed within said capsule andcapsule f onthe orifice c, then the capsule is locked by screwing the cap on the threaded F IE};

nozzle 6 so that the nose 9 passes through the orifice 0 to penetrate a little into the capsule f and compress the yielding substance 2' which it encloses. Thus one obtains at the same time the locking and sealing of the closure of the tube.

I claim 1. A closure for a collapsible tube, includ-F; ing the combination, with a threaded end on said tube, an apertured cap normally screwed on said threaded end and a .yoke swingably mounted on said cap, of a tapered extremity surmounting the threaded end of said tube, and an enclosed yielding body for sealing said tapered extremity carried upon said yoke and arranged in line with said tapered extremity and exposed toward the same when said yoke is swung to its uppermost position over the, aperture in said cap, the-screwing on of the same cap causing said tapered extremity to extend into the aperture of said cap and directly meet and engage saidyielding body so as to be closed thereby when said cap is screwed down upon said threaded end while said yielding body is aligned withsaid tapered extremity.

2. A closure for a collapsible tube, including the combination, with a threaded end on. said tube, an apertured cap normally screwed on said threaded end and a yoke swingably mounted on said cap, of a tapered extremity surmounting the threaded end of said tube, a capsule upon said yoke which is open upon the inside of the yoke toward said cap and' aligned with said tapered extremity when said yoke is swung to its uppermost position over the aperture in said cap, and a yielding accessible from the inner open side of said 7 capsule, the tip of said tapered extremity projecting through the aperture in said cap and engaging with the inner open portion of said capsule in looking engagement and si-gmultaneously making. sealing contact with the yielding body therein when said cap is scigewed down upon the threaded end of said tu e.

3. A closure for a collapsible tube, includ- 7 ing the combination, with a threaded end on sald tube, an apertured cap normally screwed on'said threaded end and a yoke swingably mounted on said'cap, of a tapered extremity 'surmounting the threaded end ofsaid tube, V and aflcapguizupbirsaid yiiliewh'ihis open upon theinsfide' of the yolfe toward said 0221) and aligned with said tapered extremity when position aidyqk wis. weeiwit upn rme overathe aperture in said ca p,-the tip ofsaid' tapered extremity projecting" thrbiigh the aperture in said cap and engaging; with the inner open portion of said capsule in looking engagement when said cap is siei-ewed ddwn up on the threaded end of sai d tube. thi24th da y 0 July, 1929'. i V PKUIJ SICAULT; 

